1010101220 has 48 divisors (see below), whose sum is σ = 2142443520. Its totient is φ = 400018176.

The previous prime is 1010101193. The next prime is 1010101273. The reversal of 1010101220 is 221010101.

It is a junction number, because it is equal to n+sod(n) for n = 1010101198 and 1010101207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1248176 + ... + 1248984.

It is an arithmetic number, because the mean of its divisors is an integer number (44634240).

Almost surely, 2^1010101220 is an apocalyptic number.

1010101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010101220 is an abundant number, since it is smaller than the sum of its proper divisors (1132342300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1010101220 is a wasteful number, since it uses less digits than its factorization.

1010101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364 (or 1362 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1010101220 is about 31782.0896103450. The cubic root of 1010101220 is about 1003.3557993471.

Adding to 1010101220 its reverse (221010101), we get a palindrome (1231111321).

The spelling of 1010101220 in words is "one billion, ten million, one hundred one thousand, two hundred twenty".